Telephone interface call processing system with call selectivity

ABSTRACT

For use with a public telephone network CO incorporating a vast number of terminals Ti-Tn, a system CS limits and controls interface access to implement voice-digital communication for statistical processing. The system CS accommodates calls in different modes, e.g. “800”, “900” or area code and incorporates qualifying apparatus to restrict against caller misuse. Alternative calling modes are used to reach an interface facility that also affords some control based on calling terminal identification, e.g. as by ANI equipment.

RELATED SUBJECT MATTER

This is a continuation of application Serial No. 08/480,185 filed on Jun. 7, 1995, now U.S. Pat. No. 5,974,120 and entitled “Telephone Interface Call Processing System With Call Selectivity,” which is a continuation of application Ser. No. 08/132,062 filed on Oct. 4, 1993, and entitled “Telephone Interface Call Processing System With Call Selectivity,” now U.S. Pat. No. 5,828,734, which is a continuation of application Ser. No. 07/779,762 filed on October 21, 1991, and entitled “Telephone Interface Call Processing System With Call Selectivity,” now U.S. Pat. No. 5,251,252, which is a continuation of application Ser. No. 07/425,779 filed on Oct. 23, 1989, and entitled “Telephone Interface Call Processing System With Call Selectivity,” now U.S. Pat. No. 5,128,984, which is a continuation-in-part of application Ser. No. 07/312,792 filed on Feb. 21, 1989, and entitled “Voice-Data Telephonic Control System,” now U.S. Pat. No. 5,073,929, which was a continuation-in-part of application Ser. No. 07/194,258 filed on May 16, 1988, and entitled “Telephonic-Interface Statistical Analysis System,” now U.S. Pat. No. 4,845,739, which was a continuation-in-part of application Ser. No. 07/018,244 filed on Feb. 24, 1987, and entitled “Statistical Analysis System For Use With Public Communication Facility,” now U.S. Pat. No. 4,792,968, which was a continuation-in-part of application Ser. No. 06/753,299 filed on Jul. 10, 1985, and entitled “Statistical Analysis System For Use With Public Communication Facility,” now abandoned.

Also, said application Ser. No. 08/132,062 is a continuation-in-part of application Ser. No. 08/306,751 filed on Sep. 14, 1994, and entitled “Multiple Format Telephonic Interface Control System,” which is a continuation of application Ser. No. 08/047,241 filed on Apr. 13, 1993, and entitled “Multiple Format Telephonic Interface Control System,” now U.S. Pat. No. 5,351,285, which is a continuation of application Ser. No. 07/509,691 filed on Apr. 16, 1990, and entitled “Multiple Format Telephonic Interface Control System,” now abandoned and a continuation-in-part of application Ser. No. 07/640,337 filed on Jan. 11, 1991, now abandoned, and entitled “Telephonic-Interface Statistical Analysis System”, which is a continuation of application Ser. No. 7/335,923 filed on Apr. 10, 1989, and entitled “Telephonic-Interface Statistical Analysis System,” now U.S. Pat. No. 6,016,344, which is a continuation of application Ser. No. 07/194,258 filed on May 16, 1988, and entitled “Telephonic-Interface Statistical Analysis System,” now U.S. Pat. No. 4,845,739, which is a continuation-in-part of application Ser. No. 07/018,244 filed on Feb. 24, 1987, and entitled “Statistical Analysis System For Use With Public Communication Facility,” now U.S. Pat. No. 4,792,968, which is a continuation-in-part of application Ser. No. 06/753,299 filed on Jul. 10, 1985, and entitled “Statistical Analysis System For Use With Public Communication Facility;” now abandoned, said application Ser. No. 07/509,691 filed on Apr. 16, 1990, now abandoned, is a continuation-in-part of application Ser. No. 07/260,104 filed on Oct. 20, 1988, and entitled “Telephonic Interface Control System,” now U.S. Pat. No. 4,930,150, which is a continuation-in-part of application Ser. No. 07/018,244 filed on Feb. 24, 1987, and entitled “Statistical Analysis System For Use With Public Communication Facility,” now U.S. Pat. No. 4,792,968, which is a continuation-in-part of application Ser. No. 06/753,299 filed on Jul. 10, 1985, and entitled “Statistical Analysis System For Use With Public Communication Facility,” now abandoned.

Also, said application Ser. No. 08/132,062 is directly a continuation-in-part of application Ser. No. 07/335,923 filed on Apr. 10, 1989, now U.S. Pat. No. 6,016,344 and entitled “Telephonic-Interface Statistical Analysis System,” which is a continuation of application Ser. No. 07/194,258 filed on May 16, 1988, and entitled “Telephonic-Interface Statistical Analysis System,” now U.S. Pat. No. 4,845,739, which is a continuation-in-part of application Ser. No. 07/018,244 filed on Feb. 24, 1987, and entitled “Statistical Analysis System For Use With Public Communication Facility,” now U.S. Pat. No. 4,792,968, which is a continuation-in-part of application Ser. No. 06/753,299 filed on Jul. 10, 1985, and entitled “Statistical Analysis System For Use With Public Communication Facility,” now abandoned. The benefit of the earlier filing dates in the United States is claimed under 35 U.S.C. §120.

BACKGROUND AND SUMMARY OF THE INVENTION

Recent years have seen a considerable growth in the use of telephonic communications. For example, in various applications, telecommunications applications have expanded to accommodate voice-digital interfaces between computer apparatus and callers at remote telephone terminals. For example, by actuating the push buttons at a remote telephone terminal, a caller controls a computer apparatus to provide various entertainment or information. In using such a system, a caller might telephone a financial service and selectively actuate the telephone key panel to receive information on specific stocks or bonds.

Digital interface systems also have been implemented to utilize digital signals provided independently of the caller's actions. For example, the so-called “ANI” telephone equipment provides digital signals indicating a caller's telephone number. Equipment designated “DNIS” is similarly available to indicate the called number. Thus, digital signals may be provided telephonically to a system associated with individual calling terminals as for identification or other use.

Telephonic games and contests are among the various applications that have been recognized for implementation with telephone interface systems. Such games and contests may be variously presented, as in cooperation with an advertising program for a product or in a lottery format. Generally with respect to such applications, various call modes might be utilized.

Essentially, three telephonic calling modes or services are in widespread use. Specifically, caller-charge or “900” service (including “976” calls) involves a charge to the caller for each call. The “900” calling mode is useful for implementing games and contests with telephone interface systems; however, certain problems are encountered. Specifically, certain telephone terminals, e.g. pay phones, do not accommodate “900” service. Also, with respect to certain forms of games and contests, it is important to offer members of the public an alternative “free” method of participation. In general, the system of the present invention may be employed to implement “900” calling modes while accommodating “free” participation with reasonable control.

Telephone calls may be accommodated without charge using “800” service or calling mode. Generally, the “800” calling mode accommodates free calls by callers in various areas to a particular station incurring the charges. In most applications, it is important to regulate the use of the “800” calling mode. Another calling mode is the traditional method of calling, involving area-code numbers which also includes calls placed within a given area code which do not usually involve a specific charge and usually do not require dialing the area code. One of the problems associated with using the area-code calling mode for interface systems is the vast number of calls. For example, even in association with an advertising campaign, inviting members of the general public to participate in a free contest or game by telephone may prompt an overwhelming response. Accordingly, a need exists for a practical system to control and limit calls to an interface service in the traditional free area-code number mode.

Another aspect of telephonic-interface contests involves zealous or obsessive participants. For example, in a quiz contest, a zealous person might call repeatedly, researching answers to given questions until ultimately a question is repeated. At that time, the caller is ready with an answer and has an unfair advantage in the contest. Thus, a need exists for control within the interface system.

In general, the system of the present invention involves a telephone call processing system for receiving calls from a multitude of terminals in different call modes and for processing calls, as to a game or contest format, with means to limit repeat-call advantages. In a disclosed form, the system implements three calling modes to facilitate various formats while accomplishing certain protection both with regard to the calling mode and contest formats.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings, which constitute a part of this specification, exemplary embodiments exhibiting biting various objectives and features hereof are set forth, specifically:

FIG. 1 is a block diagram of a system constructed in accordance with the present invention; and

FIG. 2 is a flow diagram of an operating format of the system of FIG. 1.

DESCRIPTION OF THE ILLUSTRATIVE EMBODIMENT

As required, a detailed illustrative embodiment of the present invention is disclosed herein. However, telephone techniques, physical communication systems, data formats and operating structures in accordance with the present invention may be embodied in a wide variety of forms and modes, some of which may be quite different from those of the disclosed embodiment. Consequently, the specific structural and functional details disclosed herein are merely representative, yet in that regard, they are deemed to afford the best embodiment for purposes of disclosure and to provide a basis for the claims herein which define the scope of the present invention.

Referring initially to FIG. 1, a series of remote terminals T1-TN (telephone instruments) are represented (left). The terminals T1-TN may be functionally similar and accordingly only the terminal T1 is shown in any detail. The indicated terminals T1-TN represent the multitude of telephone terminals existing in association with a communication facility CO which may comprise a comprehensive public telephone network.

The communication facility CO, accommodating the individual terminals T1-TN , is coupled to a central processing station CS generally indicated within a dashed-line block. In the station CS, to illustrate operating aspects of the present invention, calls are selectively accepted and interfaced so as to accomplish a desired operating format, for example a contest or game.

Generally, calls from the individual terminals T1-TN might be in any of three modes, i.e. the “800” mode, the “900” mode or the area-code mode (traditional area code plus number or local number dialing). In the disclosed illustrative system, depending on individual calling modes, calls are selectively accepted for interface processing. Generally, the interface format accommodates “900” calls with supplemental “800” calls to accommodate both “free” access and all types of telephone terminals. In the disclosed embodiment, calls in the “800” mode are restricted in accordance with prearranged limitations. Furthermore, calls in the area-code mode (from all areas), the 800 mode and 900 mode may be limited to callers having a station number containing a predetermined digit sequence.

For example, calls might be restricted to those from terminals having a telephone number ending in the digits “234”.

The processing station CS also is controlled to limit the effectiveness of zealous callers. For example, in a contest format, callers may be quizzed with questions randomly drawn from an inventory. In accordance herewith, questions are not repeated to individual telephone terminals T1-TN. Thus, some control is imposed on an aggressive caller who might otherwise be given two opportunities to answer the same question.

Considering the system of FIG. 1 in greater detail, the exemplary telephone terminal T1 includes a handpiece 10 (microphone and earphone) and a panel 12 provided with a rectangular array of individual push buttons 14 in a conventional configuration. Of course, the handpiece 10 accommodates analog signals while the panel 12 is a digital apparatus. During an interface operation, as disclosed in detail below, the caller is queued or prompted vocally through the handpiece 10 (earphone) to provide digital responses using the buttons 14.

At this stage, some specific aspects of the communication interface are noteworthy. Essentially, as a result of telephonic dialing at one of the terminals T1-TN, the communication facility CO couples the select terminal to an audio response unit. Specifically, to illustrate various aspects, three separate audio response units are provided in the station CS to accept calls in the three distinct modes. That is, an audio response unit 18 receives calls in the “800” mode. An audio response unit 20 receives calls in the area-code dialing mode, and an audio response unit 22 receives calls in the “900” dialing mode.

It will be understood that although three separate audio response units are illustrated, systems incorporating the principles of the present invention may well incorporate various numbers of audio response units for each calling mode, with each audio response unit having the capability to accommodate a substantial number of calls as indicated by the lines from the communication facility CO in FIG. 1. Alternatively, a single composite unit might be utilized. Also, the mode or aspects of the described embodiment might well be implemented singly or in various combinations. Herein, for purposes of explanation, calls are treated individually and processed accordingly through the three audio response units 18, 20 and 22.

Generally, the audio response units 18, 20 and 22 connect callers at remote terminals T1-TN from the communication facility Co through a coupler 24 (FIG. 1, station CS, center) to an interface processor 26. Both the coupler 24 and the processor 26 are connected to a control unit 28 that is also connected to the audio response units 18, 20 and 22. Accordingly, with overall supervision by the control unit 28, the audio response units 18, 20 and 22 answer and preliminarily qualify callers from the terminals T1-TN for connection through the coupler 24 to the interface processor 26.

Upon completion of an interface connection in the disclosed embodiment, a contest format is executed by vocally prompting callers to respond with digital data. At this point, it is noteworthy that the communication facility CO also provides identification signals to the audio response units 18, 20 and 22. Specifically, digital identification signals representing numbers associated with the calling terminals T1-TN are provided by “ANI” equipment independent of any action by the caller. In the event “ANI” equipment is not available, callers may be vocally prompted to provide the digital representations by selectively depressing the buttons 14.

The telephone communication facility CO also may provide digital signals indicating the called number. Generally, such a capability involves equipment designated “DNIS”. The capability may be useful in various embodiments of the present system, as to distribute calls from a single equipment as mentioned above.

Pursuing the exemplary structure of FIG. 1 in still greater detail, the communication facility CO provides three sets of trunks or lines LA1, LA2 and LA3 respectively coupled to the audio response units 18, 20 and 22. From the audio response units 18, 20 and 22, sets of lines LB1, LB2 and LB3 are connected to the coupler 24. Under control of the control unit 28, the coupler 24 connects individual lines 37 of the sets LB1, LB2 and LB3 to the processor 26 through lines 39.

Generally, the audio response units 18, 20 and 22 may take the form of well known telephonic structures with the capability to “answer” calls and interface callers in a preliminary way. Each of the units 18, 20 and 22 incorporate a voice generator along with some basic programmable logic capability.

The audio response unit 18 is coupled to a free-call memory 32. Generally, the unit 18 in cooperation with the memory 32 operates with the control unit 28 to qualify acceptable calls in the “800” mode.

The audio response unit 20 is connected to a select-number coincidence detector 34. These structures along with the control unit 28 test area-code mode calls. The audio response unit 22 accepts calls without initial qualification.

The system of the disclosed embodiment selectively qualifies callers depending on their calling mode. Additionally, the system responds to caller identification to enhance contest equity.

Generally, the interface processor 26 poses questions to calling contestants and stores the resulting answers in a result memory 36. Questions given to contestants are selected from a memory 38 by a random number generator 40. Essentially, the memory 38 contains an inventory of questions addressable by numbers provided by the random number generator 40. The address numbers from the generator 40 are also supplied to a coincidence detector 42 that also receives the address numerals of questions previously presented to a specific caller from a record 44. Thus, before a question is presented to a caller, the number of the calling terminal is checked to assure that the same question has not previously been posed to a caller at that terminal.

If the coincidence detector 42 clears the current question as not being repetitive, a gate 46 is qualified and the question is supplied from the memory 30 to the interface processor 26. A voice generator within the interface processor 26 then provides signals through a designated line 39, the coupler 24, a line 37, one of the audio response units and the communication facility CO to the connected remote terminal. As a result, the caller hears a simulated voice question. The answer is provided by the caller actuating the buttons 14 at the calling terminal. In that regard, the question may be in a multiple choice or true-false format to accommodate simple push button actions at the terminal.

In view of the above description of structural elements in the disclosed embodiment, a comprehensive understanding of the system may now best be accomplished by assuming certain operating conditions and describing the resulting operations.

Accordingly, assume that the system CS is programmed to accommodate a relatively simple game format, that is, a sponsored contest for the promotion of a product, e.g. the XYZ Widget. Further assume the contest is of limited participation based either upon: the payment of a token fee (“900” calling mode), prearranged participation (“800” calling mode), lottery selection (area-code calling mode) or lottery selection in combination with either 800 or 900 calling modes. Considering exemplary possibilities of the format, the XYZ Widget might be advertised with an invitation to participate via the “900” calling mode. Alternatively, participants might be variously qualified as by select notification; however, in the exemplary format, such participants would incur a token charge imposed through “900” telephonic service. To consider an example, an offering might be stated: “If your last three phone digits are 972 you may call, 1) if you wish, call 1 900 XXXX972 ($0.95 service charge) provided your last three phone digits are 972; 2) if you have written in for a ‘free to enter’ you can use the one-time PIN number provided your last three phone digits are 972. In this case you can use the ‘free’ 800 number provided to you with your PIN number.”

As indicated above, some telephone terminals do not accommodate “900” calling mode. Also, under certain circumstances, it is important to afford members of the public “free” access to participate in various games or contests. For example, such participation might be arranged by mail or other communication to provide a participant with a limited-use (i.e. one) qualification number. With use, the numbers are stored in the memory 32 and the list is checked subsequently to avoid repeat use.

A third class of contest participants might be considered lottery winners. For example, the sponsor might televise a drawing of three decimal digits to provide a sequence of three numbers. The three numbers might identify “winning” or “entitled” participants by corresponding to the last three numbers (digits) of their telephone number. For example, the drawing of the numbers “257” would entitle a single call participation from any of the telephone terminals T1-TN designated by a number, the last three digits of which are “257”.

In an exemplary contest format, participants might be asked a few test questions (for minor prizes and the ability to participate in a lottery). Of course, a vast variety of possibilities exist; and in that regard, interim prizes may be awarded to participants as the format proceeds from the initial call to the ultimate prize. At the present point, it is important to appreciate that the system accommodates participants using various telephone call modes with select qualification to participate in an interface format utilizing voice prompt and push-button digital communication. In accordance with the described example, the sponsor invites participants to enter using “900” calling mode service. As a part of such an invitation, persons are advised that “free” entry or participation may be gained by sending a self-addressed envelope to receive an entry number, e.g. eight digits, for use via “800” calling mode service. In the disclosed embodiment, the eight-digit numeral is coded for verification. Of course, numerous possibilities exist. As a simple example the second and sixth digits of the number might have a specific sum, e.g. seven or seventeen. That is, the second and sixth digits might be: three and four, five and two, six and one, seven and zero, nine and eight and so on. A qualifying number would be: “34726313”, the second and sixth digits being four and three, respectively.

With the arrangements completed for calling entries in the “900” and “800” mode, the contest might operate for several days before being opened to area-calling participants. That is, the area-calling mode might be available only after a televised drawing entitling participation from a select group of telephone numbers for a limited period of time.

In view of the above assumptions and descriptions, consider now the operation of the system as depicted in FIG. 1 in relation to the process diagram of FIG. 2. That is, assume the system of FIG. 1 is implemented and programmed to accommodate the exemplary operations as will now be described with reference to the process diagram of FIG. 2.

First, suppose a caller at the terminal T1 places a call in the “900” mode in response to an advertisement by a sponsor promoting XYZ Widgets. Perhaps the caller will receive at least a token gift and might qualify for a major lottery prize.

The assumed call involves the caller actuating the buttons 14 as for example to input: “1 900 5558945”. As a result, signals are provided to the communication facility Co resulting in a connection from the remote terminal T1 to the audio response unit 22. With the connection, the communication system CO also provides the audio response unit 22 with digital identification signals representative of the designation for remote terminal T1 (“212 627 2222”). The identification signals are provided by the ANI equipment within the communication facility CO and are registered by the audio response unit 22. The operation is illustrated as a process step in FIG. 2 by the block 50 (upper right) for “900” mode calls.

As suggested above, it may be desirable for a format to provide a token award to all callers in the “900” mode. Recognizing such particulars as possibilities, in the disclosed embodiment, calls in the “900” mode are passed through the audio response unit 22 (FIG. 1) and the coupler 24 to the interface processor 26. Accordingly, the interface processor 26 receives the calling number and processes the contest format as described in detail below.

The initial step of the format common to all call modes is represented by the block 52 in FIG. 2. However, as calls in all modes are processed similarly from that point, before proceeding with the explanation, the preliminary operations attendant other calling modes first will be explained.

As explained above, certain accommodations are made for participation in the “800” (caller free) mode. Accordingly, assume a caller at the terminal T1 has been given an identification number: “34726313” for use in the “800” mode. Accordingly, the caller dials a number, e.g. “800 555 3478”, actuating the terminal T1 and the communication facility CO to provide a connection with the audio response unit 18. With communication, the audio response unit actuates an internal voice generator prompting the caller to key in his assigned number, “34726313”. As the digits of the number are keyed in by the caller, they are supplied from the audio response unit 18 to the control unit 28 and the free-call memory 32.

Within the control unit 28, logic is provided for verifying the identification number as proper. In accordance with the simple example explained above, the control unit 28 would simply sum the second and sixth digits to test for a total of “7”. The coincidence test is represented by the query block 56 in FIG. 2. As indicated above, various codes and verification techniques are well known along with the apparatus for verifying assigned numbers.

If the control unit 28 validates the qualification number “34726313”, it is recorded in the free-call memory 32 for future checking against repeat use. Accordingly, each call in the “800” mode also involves a check or test from the audio response unit 18 to the memory 32 to determine whether or not the assigned qualification number has been previously used. The previous-use test is illustrated as a process step by the query block 58 in FIG. 2.

If the control unit 28 determines the qualification number to be invalid or the memory 32 reveals the number has been previously used, the communication is aborted by the audio response unit 18. For example, the audio response unit 18 may be actuated to provide simulated audio signals carrying a message terminating the communication. For example, the caller might be advised: “The number you have provided is not valid. Consequently, your participation cannot be accepted on that basis.”

If the entered number is valid and has not been previously used, the tests indicated by the query blocks 56 and 58 (FIG. 2) are positive and the process again proceeds to the common step as indicated by the block 52, e.g. as to receive a token gift.

As indicated above, a third possibility for contest participation involves calling in the area-code mode. While numerous format possibilities exist, as suggested above, access for callers in the area-code mode might be limited to a relatively short period of time. For example, a television program advertising the XYZ Widget might include a drawing to select the telephone terminals from which callers may participate for a period of twenty-four hours. As indicated above, the drawing might identify the last three digits of telephone numbers for the approved terminals.

Following a relatively short time (e.g. one day) during which area-code callers may enter the contest, the contest might be concluded with the ultimate winner or winners determined. In any event, assume the presence of a caller at the terminal T2 with an approved telephone number, i.e. “212 627 2257”. Somewhat as explained above with respect to other calling modes, keying operations by the caller at the remote terminal T2 result in a connection through the communication system CO to the audio response unit 20. As previously, the communication facility CO provides digital signals to the audio response unit 20 indicating the calling number (ANI). Thus, the calling number is registered as indicated by the block 62 in FIG. 2. As previously, in the event ANI equipment is not operative to serve the remote terminal T2, then the caller may be asked to key in his telephone number for subsequent verification.

From the audio response unit 20, the caller's number is supplied to the coincidence detector and storage unit 34 for a two-stage test. A first test simply seeks a coincidence between the approved number sequence (three digits) and the last three digits of the calling number. In the example, the last three digits of the calling number (“257”) are compared with the select digit sequence, “257”. The test is indicated by the query block 64 in FIG. 2.

As a secondary test, the unit 34 may check a record of previous use. Thus, the unit 34 simply implements test logic to accomplish these comparison-step operations with structures as well known in the prior art.

If the tests are negative, as indicated by the query block 64, the communication is aborted as indicated by the block 60. Alternatively, a favorable test again directs the system to proceed to the step of block 52 at which the process enters a common phase for all calling modes.

With the entry of a call into the common phase, the line carrying the call is connected through the coupler 24 (FIG. 1) to the interface processor 26. That is, depending on the call mode, the call is passed through one of the audio response units 18, 20 or 22 and the coupler 24 to the interface processor 26. Note that as indicated above, each of the audio response units 18, 20 and 22 is capable of accommodating a large number of asynchronous calls. Similarly, the coupler 24 is capable of connecting lines from the audio response units 18, 20 and 22 (LB1, LB2 and LB3 respectively) to the interface processor on an individual basis through lines 37 and 39.

The interface processor 26 may comprise a relatively substantial computing capability for processing many individual calls with programmed variations. The processing operation is illustrated in FIG. 2 beginning with the block 52. However, note that as the interface processor 26 receives the telephone number identifying a calling terminal (ANI) reference may be made to a data bank. Therefore, the operation might involve reference to substantial data on a caller. Accordingly, a basis exists for several process variations accommodated by data from a bank. The block 52 represents such possibilities as well as further informing or processing callers.

With the receipt of a call at the interface processor 26, a voice generator may be actuated to specifically inform a caller, depending upon the specific format employed. Essentially, digital signals are provided to actuate a voice generator within the processor 26. Accordingly, an audio message is provided through the coupler 24, the associated audio response unit, and the communication facility CO to the connected remote terminal. Thus, the caller may be further informed or cued.

In the disclosed embodiment, concurrently with the operation of further informing the caller, the interface processor 26 actuates the random number generator 40 to provide a random address for the question memory 38. The process step is illustrated in FIG. 2 by the block 66.

The random number (identifying a question in the memory 38) is also provided to the coincidence detector 42 to test for the previous use of the question to the calling terminal. In that regard, the interface processor 26 provides the caller telephone number (ANI) to the caller record 44 which may simply take the form of a look-up table addressed by calling numbers and revealing the identification of previous questions propounded. The addresses of questions previously recorded for a calling number are supplied to the coincidence detector 42 for comparison with the current tentative question identification number. The process step is illustrated by the query block 68 in FIG. 2.

If the tentative question has been previously used for the calling terminal, a signal is provided from the coincidence detector 42 to the interface processor prompting a repeat operation by the random number generator 40 to select another question.

Alternatively, if the tentative question is not a repeat, then the coincidence detector 42 qualifies the gate 46 and the tentative question is supplied to the interface processor 26 for actual use. Note that upon the occurrence of an approved question, the coincidence detector also supplies a signal to the call record 44 which records the identification number of the question. The process step is illustrated in FIG. 2 by the block 70.

With the provision of signals representing a question through the gate 46 to the interface processor 26, the internal voice generator is actuated to propound the question to the caller. Recognizing the vast possibilities for contest formats, one or more rather difficult questions might be propounded to isolate lottery participants. Alternatively, a relatively easy question may be propounded as a minor obstacle to participation in the final phase of the contest. In any event, as prompted or cued, the caller responds using the buttons 14 and the response is registered for testing within the interface processor 26. The process steps are indicated by the block 72 and the query block 74 in FIG. 2. The results of the tests are then stored in the interface result memory 36. Note that in the interests of human perception, a printed record may be developed concurrently with the qualification of lottery participants.

Final processing to determine a winner or winners may involve any of various operations as a drawing, an event, and so on. Accordingly, as indicated by the blocks 76 and 78, final determinations are made of winners and losers with predetermined prize allocations. Thus, the system of the present invention enables effective regulation and control of interfaces between persons at telephone stations and a central processing apparatus. Calls in various modes are accommodated with appropriate tests, and interface data (e.g. test questions) are qualified.

In view of the above descriptions, it will be apparent that the disclosed embodiment is susceptible to considerable modification in the implementation of the present invention in conjunction with a telephone system to accommodate caller interface operations. Although the disclosed embodiment is directed to a contest, it will be apparent that aspects of the system may be variously embodied to accommodate any of a variety of telephone interface operations. Furthermore, it will be apparent that while the disclosed embodiment comprises specific elements and configurations, any of a variety of structures might well be utilized. Accordingly, the scope hereof is deemed to be as set forth in the claims below. 

What is claimed is:
 1. A telephone call processing system for receiving calls through a telephone communication facility from a multitude of terminals for processing in a select interface format wherein callers are cued by voice signals supplied to said multitude of terminals and respond with digital signals, as by actuating push to said multitude of terminals and respond with digital signals, as by actuating push buttons at said multitude of terminals, said system receiving from the telephone communication systems digital signals indicative of DIS, said telephone call processing system comprising: means for selectively receiving calls from said multitude of terminals in a plurality of call modes to establish telephone communication with a select subset of callers utilizing calling number identification signals automatically provided by the telephone communication facility, said select interface format selected by said digital signals indicative of DNIS; means for receiving identification signals for said callers of said select subset; means for individually cuing said callers of said select subset to provide digital signals that are entered by the callers, wherein at least certain of the cues and their responsive digital signals are a part of common processing operations to isolate a sub-subset of said callers; and means for storing identification signals for said callers of said sub-subset.
 2. A telephone call processing system according to claim 1, further comprising. a random number generator utilized during the common processing operations for isolating said sub-subset of said callers.
 3. A telephone call processing system for receiving calls through a telephone communication facility from a multitude of terminals for processing in a select interface format wherein callers are cued by voice signals supplied to said multitude of terminals and respond with digital signals, as by actuating push buttons at said multitude of terminals, said telephone call processing system comprising: means for receiving calls from said multitude of terminals in at least two or more call modes and establishing telephone communication to select a subset of callers based upon online responses provided by said select subset of callers to questions provided via a voice generator of the telephone call processing system, said means for receiving calls receiving and utilizing automatic number identification signals associated with a calling terminal automatically provided by the telephone communication facility; means for providing identification signals entered by said callers of said select subset; and means for processing data relating to said callers of said select subset in accordance with common processing operations for calls received in the two or more call modes to isolate a sub-subset of said callers.
 4. A telephone call processing system according to claim 3, further comprising: a random number generator utilized during the common processing operations for isolating said sub-subset of said callers.
 5. A telephone call processing system for receiving calls through a telephone communication facility from a multitude of terminals for processing in a select interface format wherein callers are cued by synthesized voice signals supplied to said multitude of terminals and respond with digital signals, as by actuating push buttons at said multitude of terminals, said telephone call processing system comprising: means for selectively receiving calls from said multitude of terminals to establish telephone communication with a select subset of callers, said means for selectively receiving calls comprising means for receiving calls in a plurality of call modes including a toll free calling mode and a caller charge calling mode or an area code mode; means for providing identification signals entered by said callers of said select subset; means for individually cueing said callers of said select subset to prompt digital signals, wherein at least certain of the cues and their responsive digital signals are a part of common processing operations for the plurality of call modes to isolate a sub-subset of said callers; and means for storing identification signals for said callers of said sub-subset.
 6. A telephone call processing system for receiving calls through a telephone communication facility from a multitude of terminals for processing in an interface format wherein callers are cued by synthesized voice signals supplied to said multitude of terminals and respond with digital signals, as by actuating push buttons at said multitude of terminals, said telephone call processing system comprising: means for receiving calls from said multitude of terminals and establishing telephone communication to select a subset of callers based upon online responses provided by said select subset of callers to questions provided by a voice generator of the telephone call processing system, said means for receiving calls comprising means for receiving calls in a plurality of call modes including an “800” toll free calling mode and a caller charge calling mode or an area code mode; means for receiving identification signals entered by said callers of said select subset; and means for processing data relating to said callers of said select subset in accordance with common operations for the plurality of call modes to isolate a sub-subset of said callers.
 7. A process for receiving calls through a telephonic communication facility from a multitude of terminals in different call modes including a toll free call mode and an area code call mode and processing the calls in accordance with respective interface formats for the different call modes, wherein the process involves digital signals including digital signals provided by the multitude of terminals as for identification or data, comprising the steps of: receiving calls in the toll free call mode and providing an interface format associated with the toll free call mode; providing an identification number to facilitate participation via the toll free call mode; verifying the participation number for approval receiving calls in the area code mode and providing another interface format associated with the area code mode; providing preliminary automated greetings specific to respective interface formats associated with the toll free call mode and the area code mode, prior to execution of at least certain common operations of the interface formats; and concurrently processing the verified calls received in the toll free call mode and the calls received in the area code mode in accordance with at least certain common operations of the interface formats associated with the toll free and the area code call modes.
 8. A process for receiving calls according to claim 7, wherein a data bank relating to a caller is accessed to reference data on a caller.
 9. A process for receiving calls according to claim 7, wherein the respective interactive interface formats are associated with an information service.
 10. A process for receiving calls according to claim 7, further comprising the steps of: prompting callers calling from the multitude of terminals in the different call modes with multiple questions; and further receiving responses from the callers in the form of digital data developed by the multitude of terminals.
 11. A process for receiving calls according to claim 10, further comprising the step of: isolating a subset of callers based on the responses received from the callers.
 12. A process for receiving calls according to claim 7, further comprising the steps of: receiving the identification number in the form of a caller pin-number as digital signals provided by the multitude of terminals for identification; and wherein the verifying step includes testing to determine if the caller pin-number is eligible to participate.
 13. A process for receiving calls according to claim 7, wherein the caller identification number is tested based on limited use.
 14. A telephone call processing system according to claim 7, wherein the toll free call mode is an “800” call mode.
 15. A process for receiving calls according to claim 7, further comprising the steps of: prompting callers calling from the multitude of terminals in the different call modes with multiple questions; and further receiving responses from the callers in the form of digital data developed by the multitude of terminals to isolate a subset of callers.
 16. A process according to claim 7, further comprising the step of: receiving called number identification signals (DNIS) automatically provided by the telephonic communication facility at least for the calls in the toll free call mode and selecting the respective interface format under control of the called number identification signals (DNIS).
 17. A process according to claim 16, further comprising the Step of: testing the identification number to control for previous use under control of the called number identification signal.
 18. A process according to claim 16, further comprising the step of: testing the identification number to control for limited use based on a limited period of time under control of the called number identification signals.
 19. A process according to 7, further comprising the step of: receiving calling number identification data automatically by the telephonic communication facility.
 20. A process according to claim 19, further comprising the step of: controlling certain of the operations of at least one of the formats under control of at least certain of the calling number identification signals.
 21. A process for receiving calls through a communication facility from a multitude of terminals in an 800 call mode for processing data in accordance with an identified one of a plurality of interface formats and involving digital signals including digital signals provided by the multitude of terminals for identification or data, the process comprising the steps of: receiving calls in the 800 call mode wherein digital signals indicative of at least a first called number (DNIS) identify a first interface format; receiving calls in the 800 call mode wherein digital signals indicative of a second distinct called number (DNIS) identify a second interface format; receiving calling number identification signals automatically provided by the communication facility to indicate calling terminal numbers for certain of the multitude of terminals to verify on-line the calls received for at least one of the two distinct called numbers to provide verified calls; processing calls received in the 800 call mode for the two distinct called numbers in accordance with preliminary operations of the first and second interface formats, wherein the preliminary operations compromise: providing a distinct automated greeting under control of the digital signals (DNIS) to callers calling at least one of the two distinct called numbers associated with the first and second formats in the 800 call mode; and coupling the calls received in the 800 call mode for the two distinct called numbers wherein at least certain calls are verified calls for concurrent processing in accordance with common operations of the first and second interface formats.
 22. A telephone call processing system according to claim 21, wherein the means for processing processes data provided by callers to update a databank relating to the callers.
 23. A telephone call processing system according to claim 21, wherein the first response unit and the second response unit are incorporated within a single composite unit.
 24. A process according to claim 21, further comprising the step of receiving caller data provided via the multitude of terminals and wherein verification of the calls received in the 800 call mode for at least one of the two distinct called numbers is based upon a test of the caller provided data based upon limited use.
 25. A process according to claim 24, wherein the limited use is a one-time only use.
 26. A process according to claim, 24, wherein the caller provided data includes digital signals indicative of a personal identification number.
 27. A process according to claim 24, wherein the limited use limits use by callers during a single period of time.
 28. A process according to claim 24, wherein the caller provided data includes caller pin-number data, which is subject to limited use.
 29. A process according to claim 24, further comprising the step of: storing the caller provided data or the calling number identification signals and restricting the extent of access to the identified one of the plurality of interface formats based on at least one of caller provided data or calling number identification data.
 30. A process according to claim 24, wherein the caller data provided is used to update data for the callers in a data bank relating to the callers.
 31. A process according to claim 21, further including memory means for storing the digital signal.
 32. A process according to claim 21, further comprising the step of: providing at least one voice prompt to solicit a response in the form of data entered interactively by the callers calling one of the two distinct called numbers associated with the 800 call mode.
 33. A process according to claim 32, wherein at least certain of the data entered interactively is stored.
 34. A process according to claim 33, wherein the step of providing at least one voice prompt is initiated upon receiving calling terminal numbers associated with at least certain terminals.
 35. A process according to claim 21, wherein the calling number identification signals associated with at least certain terminals are used to access a data bank relating to calls from the terminals.
 36. A process according to claim 35, wherein the data bank is updated with data relating to the calling number identification signals.
 37. A process according to claim 21, wherein the step of verifying includes the step of tallying calls placed to at least one called number in the 800 call mode up to a predetermined limit.
 38. A process according to claim 21, wherein the calling number identification signals are tested based on limited use.
 39. A process according to claim 21, wherein at least one of the plurality of interface formats is an on-line processing format in real-time.
 40. A process according to claim 21, wherein tic process includes multiple comparative processing operations at least a part of which occur during the common operations.
 41. A process according to claim 21, wherein the step of concurrent processing of calls includes the step of processing to isolate a subset of callers.
 42. A process according to claim 21, wherein at least one of the processing of interface formats is an information format.
 43. A process according to claim 42, wherein the information format is a financial information format.
 44. A process according to claim 43, wherein the financial information format includes provision of data on stocks and bonds.
 45. A process according to claim 21, further comprising: receiving data provided by the caller via the terminals; and testing the caller provided data against stored data to determine approval for the caller.
 46. A process according to claim 45, wherein there is further testing of the caller provided data against a record of previous use.
 47. A process according to claim 45, wherein the testing step utilizes a coincidence detector and storage unit.
 48. A process according to claim 21, wherein both the first and second interface formats for the first and second 800 call modes are financial information formats.
 49. A process according to claim 21, further comprising the step of: receiving and utilizing caller provided identification data or utilizing the calling number identifications signals to determine an appropriate cue for a caller.
 50. A process according to claim 49, wherein the appropriate cue for a caller is determined by avoiding a cue previously provided to a caller.
 51. A telephone call processing system for receiving calls through a telephonic communication facility from a multitude of terminals in a toll free call mode for processing data in accordance with distinct operating process formats and involving digital signals including called number identification signals (DNIS) automatically provided by the telephonic communication facility, the system comprising: first response unit for receiving calls in the toll free call mode wherein the called number identification signals (DNIS) indicative of at least one of a plurality of distinct called numbers identifies one of the operating process formats; voice generator means for prompting callers to enter data in response to at least one voice prompt wherein the data entered by the callers is used to update data for the callers in a database relating to the callers; verification means for verifying at least the calls utilizing the one of the plurality of distinct called numbers in the toll free call mode received by the first response unit to provide verified calls based upon verifying caller entered identification data including caller personal identification data; second response unit means for receiving calls in the toll free call mode wherein called number identification signals (DNIS) indicative of one other of the plurality of distinct called numbers identifies a different one of the operating process formats; means for concurrently processing calls received by the first response unit means and the calls received by the second response unit for concurrent processing of data in accordance with at least certain common operations of the operating process formats; and audio control unit for providing an automated greeting, prior to execution of the certain common operations, under the control of the called number identification signals (DNIS) to callers calling at least one of the distinct called numbers whereby the automated greeting is specific to the one of the plurality of distinct numbers.
 52. A telephone call processing system according to claim 51, wherein the verification means verifies the calls in the toll free call mode base upon a test of caller entered identification data based upon limited use.
 53. A telephone call processing system according to claim 52, wherein the limited use is a one-time only use.
 54. A telephone call processing system according to claim 52, wherein the limited use limits use by callers during a single period of time.
 55. A telephone call processing system according to claim 51, wherein the caller pin-number data is subject to limited use.
 56. A telephone call processing system according to claim 51, wherein digital signals representing calling terminal numbers associated with at least certain terminals are automatically provided by the telephonic communication facility.
 57. A telephone call processing system according to claim 56, further including memory means for storing the digital signals.
 58. A telephone call processing system according to claim 56, wherein the verification means tests the digital signals representing calling terminal numbers associated with at least certain of the multitude terminals that are automatically provided from the telephonic communication facility.
 59. A telephone call processing system according to claim 51, further including memory means for storing data and control means for restricting the extent of access to a select operating process format based on at least one of caller entered data or calling terminal data automatically provided by the telephonic communication facility.
 60. A telephone call processing system according to claim 51, wherein the voice generator means prompts responses to at least one voice prompt in the form of data interactively provided by the callers calling at least one of the distinct called numbers.
 61. A telephone call processing system according to claim 60, wherein at least one of the responses is stored.
 62. A telephone call processing system according to claim 60, wherein the voice generator means prompts responses to at least one question upon receiving calling terminal numbers associated with the multitude of terminals that are automatically provided by the telephonic communication facility.
 63. A telephone call processing system according to claim 51, wherein digital signals representing calling terminal numbers associated with at least certain terminals are automatically provided by the telephonic communication facility and are used t access a data bank relating to calls from the terminals.
 64. A telephone call processing system according to claim 63, wherein the data bank is updated with data relating to the calling terminal numbers.
 65. A telephone call processing system according to claim 51, wherein the verification means tallies calls placed to at least one of the toll free call mode distinct numbers up to a predetermined limit.
 66. A telephone call processing system according to claim 51, wherein the data entered by the callers is used to update data for the callers in a data bank relating to the callers.
 67. A telephone call processing system according to claim 51, wherein at least one of the distinct operating process formats is an on-line processing format in real-time.
 68. A telephone call processing system according to claim 51, wherein the means for concurrently processing calls utilizes at least certain of multiple comparative processing operations as part of the common operations.
 69. A telephone call processing system according to claim 51, wherein the means for concurrently processing calls, isolates a subset of callers.
 70. A telephone call processing system according to claim 51, wherein at least one of the distinct operating process formats is a form of financial information format.
 71. A telephone call processing system according to claim 70, wherein the financial information format includes provision of data on stocks and bonds.
 72. A system according to claim 51, wherein the verification means tests the digital signals representing calling number identification signals associated with at least certain of the multitude of terminals for limited use.
 73. A system according to claim 72, wherein the caller entered data is tested against stored data for approval.
 74. A system according to claim 72, wherein there is testing of the caller entered data against a record of previous use.
 75. A system according to claim 74, wherein the testing utilizes a coincidence detector and storage unit.
 76. A system according to claim 51, wherein both the interface operating formats for the first response unit and the second response unit are financial information formats.
 77. A system according to claim 51, wherein the means for concurrently processing together with the voice generator means utilizes caller entered identification data or calling number identification signals to determine an appropriate cue for a caller.
 78. A system according to claim 77, wherein the appropriate cue is determined to avoid a cue previously provided to a caller.
 79. A system according to claim 51, further comprising: a third response unit for receiving calls in an area code mode.
 80. A process for receiving calls through a communication facility from a multitude of terminals in an 800 call mode for processing data in accordance with an identified one of a plurality of interface formats and involving digital signals including digital signals provided by the multitude of terminals for identification or data, the process comprising the steps of: receiving calls in the 800 call mode wherein digital signals indicative of at least a first called number (DNIS) identify a first interface format; receiving calls in the 800 call mode wherein digital signals indicative of a second distinct called number (DNIS) identify a second interface format; processing calls received in the 800 call mode for the two distinct called numbers in accordance with preliminary operations of the first and second interface formats, wherein the preliminary operations comprise at least the step of: providing a distinct automated greeting voice prompt to callers calling at least one of the two distinct called numbers associated with the first and second formats in the 800 call mode; receiving caller provided data entered by the callers and testing the caller entered data to verify on-line the calls received for at least one of the two distinct called numbers to provide verified calls; and coupling the calls received in the 800 call mode for the two distinct called numbers wherein at least certain calls are verified calls for concurrent processing in accordance with at least certain common operations of the first and second interface formats.
 81. A process according, to claim 80, further comprising the step of: receiving caller data provided via the terminals and wherein verification of the calls received in the 800 call mode for at least one of the two distinct called numbers is based upon a test of the caller provided data based upon limited use.
 82. A process according to claim 81, wherein the limited use is one-time only use.
 83. A process according to claim 81, wherein the caller provided data includes digital signals indicative a personal identification number.
 84. A process according to claim 81, wherein the limited use limits use by callers during a single period of time.
 85. A process according, to claim 81, wherein the caller provided data includes caller pin-number data, which is subject to limited use.
 86. A process according to claim 80, further comprising the step of: receiving digital signals representing calling number identification signals associated with at least certain terminals that are tested.
 87. A process according to claim 86, further comprising the step of: storing the caller provided data or the calling number identification signals and restricting the extent of access to at least one of the first or second formats based on at least one of caller provided data or calling number identification data.
 88. A process according to claim 87, wherein at least one of the plurality of interface formats is an information format.
 89. A process according to claim 88, wherein the information format is a financial information format.
 90. A process according to claim 89, wherein the financial information format includes provision of data on stocks and bonds.
 91. A process according to claim 80, further comprising the step of: providing at least one voice prompt to solicit a response in the form of data entered interactively by the callers calling at least one of two distinct called numbers associated with the 800 call mode.
 92. A process according to claim 91, wherein at least certain of the data entered interactively is stored.
 93. A process according to claim 91, wherein the step of providing at least one voice prompt is initiated upon receiving calling terminal numbers associated with at least certain terminals.
 94. A process according to claim 80, wherein calling number identification signals associated with certain terminals are received and used to access a data bank relating to calls from the certain terminals.
 95. A process according to claim 94, wherein the data bank is updated with data relating to the calling number identification signals.
 96. A process according to claim 80, wherein the testing step includes the step of tallying calls placed to at least one number of the toll free call mode up to a predetermined limit.
 97. A process according to claim 80, wherein the caller provided data is used to update data for the callers in a data bank relating to the callers.
 98. A process according to claim 80, wherein the calling number identification signals are tested based on limited use.
 99. A process according to claim 80, wherein at least one of the plurality of interface formats is an on-line processing format in real-time.
 100. A process according to claim 80, wherein the process includes multiple comparative processing operations at least a process of which occur during the common operations.
 101. A process according to claim 80, wherein the step of concurrent further processing of calls includes the step of processing to isolate a subset of callers.
 102. A process according to claim 80, wherein the caller provided data is tested against stored data to determine approval for a caller.
 103. A process according to claim 102, wherein there is testing of the caller provided data against a record of previous use.
 104. A process according to claim 102, wherein the testing step utilizes a coincidence detector and storage unit.
 105. A process according to claim 80, wherein both the first and second interface formats for the first and second 800 call modes are financial information formats.
 106. A process according to claim 80, further comprising the step of utilizing caller entered identification data or calling number identifications signals to determine an appropriate cue for a caller.
 107. A process according to claim 106, wherein the appropriate cue for a caller is determined by avoiding a cue previously provided to a caller. 